Add a mode that prevents aerc from quitting normally when an important
task is performed, i.e. when sending a message. The no-quit mode will be
ignored when quit is used with the -f option to force an exit.
Suggested-by: ph14nix[m]
Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>
